bug 4791: avoid 'Malformed UTF-8' warnings caused by bad UTF data in the message and a tr/// statement used to measure body string length
bug 4791: avoid 'Malformed UTF-8' warnings caused by bad UTF data in the message and a tr/// statement used to measure body string length

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@379629 13f79535-47bb-0310-9956-ffa450edef68

apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin